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Oseltamivir phosphate

BGC Id:141053612586
CAS No:204255-11-8
Synonyms:osteltamivir phosphate ; oseltamir phosphate ; oseltamivir acid-d3 phosphate ; oseltamivir phosphate ; oselt ; oseltamivir phosphate (200 mg) ; olstamivir phosphate ; oseltamivir phosphat ; ntermediates of oseltamivir ; oseltamivir phosphate, >=98%
Molecular Formula:C16H28N2O4.H3PO4
Molecular Weight:410.4
EINECS:
Structural Formula

The most competitive supplier in 2026

The following 18 notable providers have been checked and can be recommended.
Chemical-Suppliers
Sancai Industry
Description White or almost white powder Assay (on anhydrous basis) ≥ 98.0% Indentification Meets the requirements Solubility Soluble in water Loss on drying ≤ 1.0% Residue on ignition ≤ 0.1% Heavy metals ≤ 20PPM Related substances ≤ 2.0%

Chemical-Suppliers
BOC Sciences
Molecular Weight : 410.40 Molecular Formula : C16H31N2O8P Canonical SMILES : CCC(CC)OC1C=C(CC(C1NC(=O)C)N)C(=O)OCC.OP(=O)(O)O InChI : InChI=1S/C16H28N2O4.H3O4P/c1-5-12(6-2)22-14-9-11(16(20)21-7-3)8-13(17)15(14)18-10(4)19;1-5(2,3)4/h9,12-15H,5-8,17H2,1-4H3,(H,18,19);(H3,1,2,3,4)/t13-,14+,15+;/m0./s1 InChIKey : PGZUMBJQJWIWGJ-ONAKXNSWSA-N Boiling Point : 473.3°C at 760 mmHg Melting Point : 190-196°C Purity : > 98%
Chemical-Suppliers
Leap Chem
Molecular Formula: C16H28N2O4.H3PO4 Molecular Weight: 410.40

The last intensive check and update was carried out on 2026/04/29.

Identify

Synonyms:
osteltamivir phosphate ; oseltamir phosphate ; oseltamivir acid-d3 phosphate ; oseltamivir phosphate ; oselt ; oseltamivir phosphate (200 mg) ; olstamivir phosphate ; oseltamivir phosphat ; ntermediates of oseltamivir ; oseltamivir phosphate, >=98%
CAS:
204255-11-8
EINECS:
Molecular Formula:
C16H28N2O4.H3PO4
MDL:
MFCD08059548
SMILES:
C1=CN=C(N=C1C(=O)O)Cl

Properties

Molecular Weight:
410.4 g·mol−1
Melting point:
196-198 °C
Solubility:
Soluble in water (>500 mg/ml), methanol, DMSO (2 mg/ml at 25° C), and ethanol (<1 mg/ml at 25° C).
download Download Molfile

Suppliers

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Sancai Industry Co.,Ltd.

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Telefax: +86-531-88913079
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Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd)

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Telefax: +86 571 88282557
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Hangzhou Zhongqi Chem Co., Ltd

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Finetech Industry Limited

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Country: P.R.China
Phone: +86-27-8746 5837
Telefax: +86-27-8777 2287
Finetech Industry Limited is a company in England,which specializing in developing, manufacturing and marketing fine organic compounds and intermediates for the pharmaceutical industry. Most of our products were exported to the North America, Europe and Oceania. Finetech Industry Limited also offers 3,6-Difluorophthalic anhydride. Our factory is in China,we supply Fluorochemicals, Pyrimidines, Pyridines, Amines, Nitriles, Carboxylic Acids or Ester, Phenols or Alcohols, Aldehydes, Piperidines, Piperazines, Pyrazines, Boric Acids, Amino Acids, ...

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BOC Sciences

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BOC Sciences provides a wide range of customer services, bulk and specialty compounds to the pharmaceutical, agrochemical and biotechnology industries. We intend to offer you the products and services of the highest quality at the most reasonable, cost efficient prices. Isepamicin sulfate will be also provided by us. Most of our compounds can be supplied ranging from mg to kg and arrive with analytic report. We hope to add immense value to your research projects!
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Hangzhou Lingrui Chemical Co., Ltd.

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Country: P.R.China
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Telefax: +86-571-87334908
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Xingrui Industry Co., Limited

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Xiamen Equation Chemical Co.,Ltd

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AK Scientific, Inc.

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Safety Information

Hazard Classes:
irritant
Hazardous Substances Data:
Non-Regulated Material ¹
Storage temperature:
-20 °C Freezer

What other providers are available for CAS 204255-11-8?

In addition to the providers presented here for Oseltamivir phosphate with the CAS number 204255-11-8, there are other 7 providers with slightly different product names available for this CAS number.

+1 additional providers that we know from the past
BLD Pharmatech Ltd +4 additional providers that we know from the past




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